A device for applying release agent to steel pipe pile molds

Abstract

This utility model specifically relates to a release agent application device for steel pipe pile molds, comprising a base plate, a supporting trolley and a track mounted thereon for placing the bottom mold and top mold. One end of the base plate has a vertical plate, and a central rotating shaft extending into the mold cavity is horizontally mounted on its side. Multiple first bases are evenly distributed on the surface of the central rotating shaft, on which telescopic plates are mounted. A roller brush with an outer fiber layer is rotatably mounted on the side of the telescopic plates. A second base is circumferentially distributed at the end of the central rotating shaft, on which an arc-shaped brush plate is connected via a telescopic rod. Release agent channels, connected by flexible hoses, are opened inside the roller brush and the central rotating shaft. This utility model achieves integrated and uniform coating of the inner wall and ends of the steel pipe pile mold by rotating the central rotating shaft, driving the roller brush and arc-shaped brush plate in conjunction with axial feed motion. The built-in channel for supplying the release agent avoids oxidation and contamination problems caused by open spraying, while also adapting to different mold specifications, exhibiting a high degree of automation and excellent coating effect.

Description

Technical Field

[0001] This utility model relates to the field of steel mold technology for pipe piles, specifically a device for applying release agent to steel molds for pipe piles. Background Technology

[0002] Pipe piles are important foundation materials and cement products. Compared with general foundation engineering, they have advantages such as high quality, fast construction, and strong adaptability to engineering geology. They are widely used in the foundation engineering of various buildings and structures, such as high-rise buildings, public buildings, roads, bridges and other fields.

[0003] In the production process of pipe piles, a reinforcing cage needs to be inserted into the pipe pile steel mold, followed by processes such as feeding, tensioning, centrifugation, ambient temperature steam curing, demolding, and high-pressure steam curing. After demolding, in order to facilitate the next removal of the pipe pile from the pipe pile steel mold, the inner walls of the upper and lower molds need to be cleaned and coated with a release agent.

[0004] In the prior art, application number 202223344192.7 discloses a release agent spraying device for pipe pile steel molds, including a support mechanism with several first frames arranged side by side, on which the pipe pile steel mold is placed laterally; a spraying mechanism located below the pipe pile steel mold, having a main infusion pipe and several spray heads arranged on the main infusion pipe, the length direction of the main infusion pipe extending along the length direction of the pipe pile steel mold, the spray heads being used to spray the release agent onto the inner wall of the pipe pile steel mold; and a recovery mechanism having a water collection tank and a water storage tank connected to the water collection tank, the water collection tank being located below the main infusion pipe, the length direction of the water collection tank extending along the length direction of the main infusion pipe, the water storage tank being located below the ground plane, a water pump being installed at the bottom of the water storage tank, and the main infusion pipe being connected to the water pump via a water pipe. This structure uses a large amount of release agent sprayed onto the template surface and then recycled through a recycling system. This can cause the release agent to oxidize excessively when exposed to air, affecting its effectiveness. In addition, the template must be cleaned manually, otherwise soluble impurities will contaminate the release agent. Utility Model Content

[0005] The purpose of this invention is to provide a device for applying release agent to steel molds for pipe piles, so as to solve the problems mentioned in the background art.

[0006] The technical solution of this utility model is: a release agent application device for steel pipe pile molds, including a base plate, a plurality of supporting trolleys on the upper surface of the base plate for placing the bottom mold, a top mold on the top of the bottom mold, a vertical plate at one end of the base plate, a central rotating shaft horizontally arranged on the side of the vertical plate near the bottom mold, the central rotating shaft being located in the cavity between the bottom mold and the top mold, a plurality of first bases uniformly fixed on the surface of the central rotating shaft, a telescopic plate fixedly installed on the upper surface of the first base, a roller brush rotatably installed on the side of the telescopic plate, and a fiber layer covering the outer periphery of the roller brush.

[0007] Preferably, the upper surface of the base plate is provided with a track, and the support trolley is slidably mounted on the track.

[0008] Preferably, a second base is circumferentially arranged on the side of the central rotating shaft away from the vertical plate, and a telescopic rod is fixedly provided on the surface of the second base. An arc-shaped brush plate is fixedly provided on the top surface of the telescopic end of the telescopic rod.

[0009] Preferably, a connecting seat is fixedly provided at the end of the roller brush away from the telescopic plate, and a connecting seat is also fixedly provided at the position corresponding to the central rotating shaft, and the two connecting seats are connected by a flexible hose.

[0010] Preferably, both the roller brush and the central rotating shaft have mold release agent channels inside, and the mold release agent channels are interconnected through flexible hoses.

[0011] Preferably, the arc-shaped surface of the arc-shaped brush plate matches the shape of the inner wall of the steel mold of the pipe pile, and the surface of the arc-shaped brush plate is covered with replaceable bristles or sponge layer.

[0012] Preferably, the central rotating shaft is connected to a rotary drive mechanism for driving the central rotating shaft to rotate.

[0013] Preferably, the rotary drive mechanism includes a motor fixed to the upright plate, and the motor output shaft is connected to the central rotating shaft for transmission.

[0014] Preferably, both the telescopic rod and the telescopic plate are electric push rods, and they are equipped with a remote control adjustment mechanism inside or in connection with each other, which can control their telescopic movement through an external remote control.

[0015] This utility model provides an improved release agent application device for steel molds of pipe piles, which has the following improvements and advantages compared with the prior art: Firstly, the release agent of this invention is directly delivered to the fiber layer of the roller brush through an internal channel, achieving precise and uniform application as the brush rolls against the inner wall of the mold. This process virtually isolates the release agent from large-area contact with air, effectively preventing performance degradation due to oxidation. Simultaneously, because it is readily available and there is no excess release agent splashing or flowing, there is no need for a complex recycling system. This completely eliminates the problem of contamination of the entire release agent pool due to impurities such as dust and concrete residue mixed in the recycled liquid, ensuring the release agent remains pure and highly efficient. Secondly, this utility model features a radially adjustable arc-shaped brush plate at the end of the central rotating shaft. The arc-shaped surface of the brush plate matches the shape of the inner wall of the mold port, enabling the inner surface of the mold to be cleaned before applying the release agent. This saves labor and time, avoids quality defects such as poor adhesion of the release agent and pitting on the inner wall of the pipe pile due to incomplete cleaning, and further ensures the demolding effect and the smoothness of the inner surface of the finished product. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the arc-shaped brush plate; Figure 3 yes Figure 1 A magnified view of part A in the middle; Figure 4 This is a cross-sectional view of a roller brush.

[0017] Explanation of reference numerals in the attached figures: 1. Bottom mold; 2. Top mold; 3. Support trolley; 4. Base plate; 5. Track; 6. Vertical plate; 7. Central pivot; 8. First base; 9. Telescopic plate; 10. Roller brush; 11. Connecting seat; 12. Hose; 13. Second base; 14. Telescopic rod; 15. Arc-shaped brush plate; 16. Release agent channel. Detailed Implementation

[0018] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0019] This utility model provides an improved device for applying a release agent to steel molds for pipe piles. The technical solution of this utility model is as follows: like Figures 1-4As shown, a pipe pile steel mold release agent application device includes a horizontally arranged base plate 4, serving as the installation foundation for the entire device. Several support trolleys 3 are arranged on the upper surface of the base plate 4. These support trolleys 3 are used to carry and transport the pipe pile steel mold after it is closed—that is, the bottom mold 1 placed on it and the top mold 2 fastened to the top of the bottom mold 1. At one end of the base plate 4, a vertical plate 6 is fixedly installed. On the side of the vertical plate 6 facing the mold cavity, a central rotating shaft 7 is horizontally installed via a bearing seat or other support structure. When the pipe pile steel mold is transported to its position by the support trolleys 3, the axis of the central rotating shaft 7 should be substantially coincident with the axis of the mold cavity, i.e., its entire structure is located inside the cylindrical cavity formed after the bottom mold 1 and the top mold 2 are fastened. On the cylindrical surface of the central rotating shaft 7, multiple first bases 8 are uniformly fixedly installed along its length and circumference. A telescopic plate 9 is fixedly installed on the upper surface of each first base 8. A roller brush 10 is rotatably mounted on the side of the telescopic plate 9 via a bearing or rotating shaft structure. The outer periphery of the roller brush 10 is wrapped with a layer of fiber, such as high-density cotton lint, felt, or synthetic fiber cloth, which can absorb and coat liquids. During operation, the rotation of the central shaft 7 drives all the roller brushes 10 to revolve; at the same time, the extension plate 9 is controlled to extend, so that the fiber layer of the roller brush 10 can contact the inner wall of the mold for roller coating.

[0020] Furthermore, at least one track 5, preferably a linear guide rail, is precisely machined or installed on the upper surface of the base plate 4. The bottom of the support trolley 3 is equipped with rollers that cooperate with the track 5, allowing the support trolley 3 to slide smoothly and linearly along the track 5. This design enables the heavy pipe pile steel mold to be easily and accurately pushed into or pulled out of the painting station, facilitating loading and unloading, and achieving rapid alignment with the central rotating shaft 7, greatly improving operational convenience and positioning accuracy.

[0021] Furthermore, on the side of the central rotating shaft 7 away from the vertical plate 6, a ring of second bases 13 is evenly arranged circumferentially. A telescopic rod 14 is fixedly mounted on the surface of each second base 13. The top surfaces of the telescopic ends of all the telescopic rods 14 are connected together, or separately connected to and support an arc-shaped brush plate—that is, an arc-shaped brush plate 15. The convex surface of the arc-shaped brush plate 15 faces the inner wall of the mold. By controlling the synchronous extension and retraction of all the telescopic rods 14, the arc-shaped brush plate 15 can be driven to move radially along the central rotating shaft 7, so that its arc surface fits against or disengages from the inner wall surface near the mold port, cooperating with the movement of the support trolley 3, for cleaning the inside of the mold.

[0022] Furthermore, a connecting seat 11 is fixedly provided at the end of the roller brush 10 away from its mounting axis, and the connecting seat 11 has a flow channel inside. Simultaneously, a connecting seat 11 is also fixedly provided at the corresponding position on the central rotating shaft 7. A flexible hose 12 is used to connect the interfaces of these two connecting seats 11, thereby establishing a fluid passage between the roller brush 10 and the central rotating shaft 7. This structure allows the release agent to flow from inside the central rotating shaft 7 to each roller brush 10.

[0023] Furthermore, one or more release agent channels 16, serving as a main delivery pipe, are formed axially inside the central rotating shaft 7. Correspondingly, a release agent channel 16 communicating with the spindle or brush body of each roller brush 10 is also formed inside the spindle or brush body. The channels 16 inside the central rotating shaft 7 and the channels 16 inside the roller brush 10 are interconnected through the aforementioned hoses 12, forming a branched liquid supply network from the center to the periphery. The release agent is injected into the channels 16 of the central rotating shaft 7 by an external pumping system via a rotary joint, and then distributed to each roller brush 10 via each hose 12, finally seeping out from its fiber layer, achieving a continuous and uniform supply.

[0024] Furthermore, the curved surface of the arc-shaped brush plate 15 is designed based on the inner wall curvature of the target pipe pile steel mold port, ensuring that it can conform to the surface of that area to the maximum extent after extension. In addition, a replaceable flexible material layer, such as rows of nylon bristles and a highly absorbent sponge block, is covered or embedded on the working surface of the arc-shaped brush plate 15. The bristles are suitable for initial dry cleaning to remove scum; the sponge layer can absorb a small amount of release agent for fine coating of the port. The replaceable design facilitates maintenance after wear or contamination, maintaining cleanliness and coating effectiveness.

[0025] Furthermore, the central rotating shaft 7 is connected to a complete set of rotary drive mechanisms. This mechanism is mainly used to provide power to drive the central rotating shaft 7 to rotate around its own axis. The rotational motion is the basic action that drives the roller brush 10 and the arc-shaped brush plate 15 on it to perform circumferential brushing or cleaning of the inner wall of the mold.

[0026] Furthermore, in a preferred configuration of the rotary drive mechanism, the mechanism includes a motor, which is fixedly mounted on the back of the upright plate 6 via a mounting bracket. The output shaft of the motor is connected to the end of the central rotating shaft 7 via a coupling and a gear transmission mechanism. By controlling the start / stop, speed, and direction of the motor, the rotational movement of the central rotating shaft 7 can be precisely controlled.

[0027] Furthermore, both the telescopic rod 14 and the telescopic plate 9 employ electric actuators. Each electric actuator, or its associated control circuit, integrates a remote control adjustment mechanism. The operator can use an external remote control to send control commands from a safe distance. Upon receiving the command, the remote control adjustment mechanism drives the motor of the electric actuator, thereby enabling synchronous or independent remote control adjustment of the telescopic length of all telescopic rods 14 and telescopic plates 9. This makes adjusting the brush position to accommodate different mold specifications very convenient and safe.

[0028] Working principle: After the pipe pile steel mold is closed, it is hoisted onto the support trolley 3 and pushed in along the track 5 so that the central rotating shaft 7 is located in the center of the mold cavity. The operator controls the extension rod 14 to extend and the arc-shaped brush plate 15 to gently contact the inner wall of the mold via remote control. First, the central rotating shaft 7 can be started to rotate and the support trolley 3 can be moved slowly in the opposite direction to perform dry cleaning using the arc-shaped brush plate 15. After cleaning, the trolley is reset. Next, the extension rod 14 is controlled to retract and the extension plate 9 is extended, and the external release agent pump is started. The release agent is delivered to each roller brush 10 through the inner channel 16 and hose 12 of the central rotating shaft 7 and wets the fiber layer. At the same time, the central rotating shaft 7 is started to rotate again and the support trolley 3 is driven to move slowly at a constant speed. The rotating roller brush (10) completes the uniform coating of the entire inner wall of the mold in the axial relative movement. After the coating is completed, the pump is stopped and the rotation is stopped. All brushes are remotely retracted and the mold is finally pulled out, thus completing the entire automated coating process.

[0029] The foregoing description enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for applying a release agent to a steel pipe pile mold, comprising a base plate (4), wherein a plurality of supporting trolleys (3) are provided on the upper surface of the base plate (4), the supporting trolleys (3) being used to place a bottom mold (1), and a top mold (2) being provided on the top of the bottom mold (1), characterized in that: One end of the base plate (4) is vertically provided with a support plate (6). The support plate (6) is horizontally provided with a central rotating shaft (7) on the side near the bottom mold (1). The central rotating shaft (7) is located in the cavity between the bottom mold (1) and the top mold (2). Multiple first bases (8) are uniformly fixed on the surface of the central rotating shaft (7). A telescopic plate (9) is fixedly installed on the upper surface of the first base (8). A roller brush (10) is rotatably installed on the side of the telescopic plate (9). The outer periphery of the roller brush (10) is covered with a fiber layer.

2. The device for applying a release agent to a steel formwork for pipe piles according to claim 1, characterized in that: The upper surface of the base plate (4) is provided with a track (5), and the support trolley (3) is slidably mounted on the track (5).

3. The device for applying a release agent to a steel formwork for pipe piles according to claim 2, characterized in that: A second base (13) is circumferentially arranged on the side of the central rotating shaft (7) away from the vertical plate (6). A telescopic rod (14) is fixedly provided on the surface of the second base (13), and an arc-shaped brush plate (15) is fixedly provided on the top surface of the telescopic end of the telescopic rod (14).

4. The device for applying a release agent to a steel formwork for pipe piles according to claim 3, characterized in that: The roller brush (10) is fixedly provided with a connecting seat (11) at one end away from the telescopic plate (9), and a connecting seat (11) is also fixedly provided at the corresponding position of the central rotating shaft (7). The two connecting seats (11) are connected by a hose (12).

5. The device for applying a release agent to a steel formwork for pipe piles according to claim 4, characterized in that: Both the roller brush (10) and the central rotating shaft (7) have release agent channels (16) inside, and the release agent channels (16) are interconnected through a hose (12).

6. The device for applying a release agent to a steel formwork for pipe piles according to claim 5, characterized in that: The arc-shaped brush plate (15) has an arc-shaped surface that matches the shape of the inner wall of the steel mold of the pipe pile, and the surface of the arc-shaped brush plate (15) is covered with replaceable bristles or sponge layer.

7. The device for applying a release agent to a steel formwork for pipe piles according to claim 6, characterized in that: The central rotating shaft (7) is connected to a rotary drive mechanism, which is used to drive the central rotating shaft (7) to rotate.

8. The device for applying release agent to steel formwork for pipe piles according to claim 7, characterized in that: The rotary drive mechanism includes a motor fixed on the vertical plate (6), and the motor output shaft is connected to the central rotating shaft (7) for transmission.

9. The device for applying a release agent to a steel formwork for pipe piles according to claim 3, characterized in that: Both the telescopic rod (14) and the telescopic plate (9) are electric push rods, and they are equipped with a remote control adjustment mechanism inside or in connection with each other, which can control their telescopic movement through an external remote control.

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